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Return EINVAL when alignment is not a power of 2 to match posix standard

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Julian Fang 2019-06-27 16:10:46 +08:00
parent 5dfced26c2
commit fb348e1cb0
1 changed files with 1 additions and 1 deletions
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src/alloc-override.c
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@ -135,7 +135,7 @@ int posix_memalign(void** p, size_t alignment, size_t size) {
// TODO: the spec says we should return EINVAL also if alignment is not a power of 2. // TODO: the spec says we should return EINVAL also if alignment is not a power of 2.
// The spec also dictates we should not modify `*p` on an error. (issue#27) // The spec also dictates we should not modify `*p` on an error. (issue#27)
// <http://man7.org/linux/man-pages/man3/posix_memalign.3.html> // <http://man7.org/linux/man-pages/man3/posix_memalign.3.html>
if (alignment % sizeof(void*) != 0) return EINVAL; // no `p==NULL` check as it is declared as non-null if ((alignment % sizeof(void*))||(alignment % 2 != 0) return EINVAL; // no `p==NULL` check as it is declared as non-null
void* q = mi_malloc_aligned(size, alignment); void* q = mi_malloc_aligned(size, alignment);
if (q==NULL && size != 0) return ENOMEM; if (q==NULL && size != 0) return ENOMEM;
*p = q; *p = q;